Maybe you remember my post on things to look at and make sure how not to get cheated in link-building? Well, that list needs to be extended by a very, very important item: The “newly” introduced Canonical Tag using a HTTP header directive.
But first of all, let’s have a look on what happened: Last Friday there was a post on the official Google Webmaster blog stating the following: “Based on your feedback, we’re happy to announce that Google web search now supports link rel=”canonical” relationships specified in HTTP headers […]”. Ok, so what does it mean? Up to now you had to place the canonical tag within a website’s HTML source code. (more…)